Hi Lucas. I'm Greg, 10 years awarded Windows MVP, here to help you.
The only security password is your Microsoft Account password. You need to keep in closely guarded along with the Security Info mobile and alternate email where you will receive Security Codes if you need to change something or recover your account:
https://support.microsoft.com/en-us/help/12428/...
If necessary you can reset your password:
https://www.elevenforum.com/t/reset-password-fo...
Hopefully you won't have to do Account Recovery which can last up to 30 days while they confirm the ownership of the account. If so then here's a walk through of the form to try to get it over with quicker:
https://support.microsoft.com/en-us/help/17875/...
If you are locked out of Windows I can help you rescue your files and do a Reset or Clean Install.
Report back results for each step so I know what else to suggest.
Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.
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